<?php
$dataList = array(
	0=>array("username" => "哈哈哈哈", "content" => "测试内容一"),
	1=>array("username" => "哈哈哈哈", "content" => "测试内容一"),
	2=>array("username" => "哈哈哈哈", "content" => "测试内容一"),
	3=>array("username" => "哈哈哈哈", "content" => "测试内容一"),
	4=>array("username" => "哈哈哈哈", "content" => "测试内容一")
);

echo json_encode($dataList);
?>